AI Cargo aircrafts lands and goes into reverse supersonic

[Chesster]

Trying to make a Cargo handling script of AI aircrafts transporting stuff around according to needs at different airbases, but the skill of the Cargo AI planes are amazing and prevents the aircraft from landing on many airbases. Video below shows what happens after landing. It veers off the runway, retracts it landing gear as if it's going going around, then goes into reverse and accelerates until several thousand knots before the mission crashes.